Sunk on 3 August 1941 in the North Atlantic south-west of Ireland, in position 50.30N, 19.35W, by depth charges from the British corvette HMS Hydrangea. 45 dead (all hands lost). (Axel Niestlé, February 2004).

Sunk 3 Aug 1941 in the North Atlantic south-west of Ireland, in position 50.27N, 19.50W, by depth charges from the British destroyer HMS Wanderer and the Norwegian destroyer St. Albans and the British corvette HMS Hydrangea.

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-401 did not suffer any casualties (we know of) until the time of her loss.